磷酸铁锂电池系统过充电/过放电试验数据集
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磷酸铁锂电池系统过充电/过放电试验数据集主要面向电池全生命周期故障诊断及热失控机制研究。数据集主要记录了磷酸铁锂电池单体、模组及电池包在恒流恒压工况下过充至特定截止电压，以及过放过程中诱发内短路的电流、电压、阻抗、温度、压力和厚度变化数据，同时结合负极析锂等副反应触发内短路过程的实时监测。实验采用开尔文四线接法、绝热量热仪及恒压力测厚夹具等设备，保障高精度数据采集和分析。数据采集时间为2023年3月至7月，实验地点为北京理工大学西山实验区。所用设备包括Arbin LBT 6V10A电池测试系统、THT EV-ARC绝热量热仪及厦门元能科技恒压力测厚夹具。实验设计遵循GB 28031-2020标准，采用秒级采样。数据集大小总计305MB，格式涵盖.xlsx、.csv及.jpg文件，用于揭示复杂工况下电池内部机制的动态演化，为储能系统安全性提升提供理论与数据支撑。
This overcharge/overdischarge test dataset for lithium iron phosphate (LFP) battery systems is primarily intended for fault diagnosis across the full lifecycle of batteries and research into thermal runaway mechanisms. The dataset mainly records data on changes in current, voltage, impedance, temperature, pressure and thickness of LFP battery cells, modules and battery packs during overcharge to a specified cut-off voltage under constant current-constant voltage (CC-CV) conditions, as well as during overdischarge that induces internal short circuits (ISC). It also includes real-time monitoring of the internal short circuit process triggered by side reactions such as lithium plating on the negative electrode. The experiment adopted equipment such as the four-wire Kelvin connection method, adiabatic calorimeter and constant-pressure thickness measuring fixture to ensure high-precision data collection and analysis. Data was collected from March to July 2023 at the Xishan Experimental Area of Beijing Institute of Technology. The equipment used includes the Arbin LBT 6V10A battery test system, THT EV-ARC adiabatic calorimeter, and the constant-pressure thickness measuring fixture from Xiamen Yuanneng Technology. The experimental design follows the GB 28031-2020 standard, with second-level sampling. The total size of the dataset is 305 MB, with file formats including .xlsx, .csv and .jpg. It is used to reveal the dynamic evolution of internal mechanisms of batteries under complex operating conditions, providing theoretical and data support for improving the safety of energy storage systems.
